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lock

 [lok]
1. a place, often airtight, where something is sealed in.
2. a device such as a clamp for holding something firmly in place.
heparin lock see heparin lock.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

lock

(lok),
A device for holding or closing.
Farlex Partner Medical Dictionary © Farlex 2012

lock

Vox populi A device that prevents a particular action or activity. See Bloxham air lock, Heparin lock, Job lock, Vapor lock.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

lock

(lok)
1. An enclosing, fastening, or securing device.
2. A mechanism that, when moved, permits or obstructs passage.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
But Dressler, the SS commander with whom Klaus locks horns, made my stomach lurch every time he appeared on the scene: "Dressler's extended arm lowered as it pointed an invitation through the large door, like some black vulture arrogantly inviting his prey to dinner."
BORO'S Jonathan Greening locks horns with Chelsea's cosmopolitan midfield at the Riverside Stadium today, knowing the major threat might come from a little closer to home.
Jason White locks horns with South African opposition for Scotland today for the first time since his four-month ban for stamping on Springboks stand-off Braam van Straaten.